Canada · Ontario

Grand River

Ontario · 300 km · Class I–II
Optimal: CFS · USGS #02GB001
0
7,451CFS
4.79 ft gauge height
Optimal
↓Falling slowly (-71 cfs/hr)(-317.832 in 3h)
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
Avg flow: 0 cfsHist. median: 0 cfs🇨🇦 WSC #02GB001
Canadian Heritage River (1994) · Grand River Conservation Authority

The largest watershed in southern Ontario — 300 km from headwaters near Dundalk through Kitchener-Waterloo, Cambridge, Paris, and Brantford to Lake Erie at Port Maitland. Designated a Canadian Heritage River in 1994, the Grand drains 6,800 km² and supports the most active paddling corridor in southwestern Ontario. The Grand River Conservation Authority (GRCA) manages a supplementary gauge network in addition to the Environment Canada WSC stations — see grandriver.ca for the GRCA-specific gauges and dam-release schedules. Primary paddling sections: Cambridge to Paris (calm Class I), Paris to Brantford (gentle riffles), and the Elora Gorge (technical Class II–III with rentable river-tubing).

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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and access points may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level.

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